1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtQml module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QQMLCOMPONENTATTACHED_P_H 41 #define QQMLCOMPONENTATTACHED_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include <QtQml/qqml.h> 55 #include <private/qtqmlglobal_p.h> 56 #include <QtCore/QObject> 57 58 QT_BEGIN_NAMESPACE 59 60 61 class Q_QML_PRIVATE_EXPORT QQmlComponentAttached : public QObject 62 { 63 Q_OBJECT 64 65 // Used as attached object for QQmlComponent. We want qqmlcomponentattached_p.h to be #include'd 66 // when registering QQmlComponent, but we cannot #include it from qqmlcomponent.h. Therefore we 67 // force an anonymous type registration here. 68 QML_ANONYMOUS 69 public: 70 QQmlComponentAttached(QObject *parent = nullptr); 71 ~QQmlComponentAttached(); 72 add(QQmlComponentAttached ** a)73 void add(QQmlComponentAttached **a) { 74 prev = a; next = *a; *a = this; 75 if (next) next->prev = &next; 76 } rem()77 void rem() { 78 if (next) next->prev = prev; 79 *prev = next; 80 next = nullptr; prev = nullptr; 81 } 82 QQmlComponentAttached **prev; 83 QQmlComponentAttached *next; 84 85 Q_SIGNALS: 86 void completed(); 87 void destruction(); 88 89 private: 90 friend class QQmlContextData; 91 }; 92 93 QT_END_NAMESPACE 94 95 #endif // QQMLCOMPONENTATTACHED_P_H 96